I have so much to thank Bill Gates for: introducing me to the baffling joys of consumer computing with Windows 95; teaching me the meaning of fear and dread with Windows 98; leading me to the sunlit uplands of Windows XP; getting me out of Microsoft altogether with the arrival of Vista. I hardly know where to start. And if I hadn't flown into a high-minded anti-Microsoft, down-with-Bill-Gates fury at the start of this year, would I ever have stumbled upon ZenWalk? I doubt it.